plural noun

un·​dies ˈən-dēz How to pronounce undies (audio)
informal : underwear
especially : underpants or panties

Examples of undies in a Sentence

likes to wear silk undies
Recent Examples on the Web The Rinna Beauty founder, 59, rolled up to Crytpo.com Arena in barely any clothing — opting for just her undies. Zizi Strater, Peoplemag, 8 Feb. 2023 To match her ski lodge-ready, loungewear look, Addison wore a coordinating thong under her dress, wearing the undies high on her hips. Abby Dupes, Seventeen, 15 Dec. 2022 The collection includes boxers, briefs, bikinis, boyshorts and more undies as well as socks, bralettes, jogger pants and T-shirts. Ingrid Schmidt, The Hollywood Reporter, 8 Dec. 2022 For more leakproof activewear and undies, Knix marked down the entire site 20 to 60%. Sarah Madaus, SELF, 28 Nov. 2022 Swap those gag gift undies with silly pictures of bae (not to mention those panties that need to be retired) for a classier panty set à la Mrs. Bieber. Seventeen, 30 Aug. 2022 Parade Now to November 28: Parade's assortment of cheeky undies and comfy bras just got cheaper. Sarah Han, Allure, 28 Nov. 2022 Hailey Bieber recently rocked a similar white pair of undies with her name embroidered on the front in baby blue font. Hannah Oh, Seventeen, 15 Nov. 2022 Yellow is for luck, red is for love and white undies bring peace. Marisa Lascala, Good Housekeeping, 25 Oct. 2022

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'undies.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


by shortening & alteration

First Known Use

1900, in the meaning defined above

Time Traveler
The first known use of undies was in 1900

Dictionary Entries Near undies

Cite this Entry

“Undies.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/undies. Accessed 23 Jun. 2024.

Kids Definition


plural noun
un·​dies ˈən-dēz How to pronounce undies (audio)
: underwear
especially : women's underwear
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